The Collaborative International Dictionary of English v.0.48:

Captivation \Cap"ti*va`tion\, n. [L. capticatio.]
   The act of captivating. [R.]
   [1913 Webster]

         The captivation of our understanding.    --Bp. Hall.
   [1913 Webster]

WordNet (r) 3.0 (2006):

captivation
    n 1: the state of being intensely interested (as by awe or
         terror) [syn: fascination, captivation]
    2: a feeling of great liking for something wonderful and unusual
       [syn: captivation, enchantment, enthrallment,
       fascination]